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1 MORE ABOUT CIRCLES FEATURING TOPICS:  ,[object Object]
 AREA OF CIRCLE
DIAMETER OF CIRCLE
 RADIUS OF A CIRICLE
 CIRCUMFERENCE OF A CIRCLE
 CHORD OF CIRICLE
 TANGENT OF A CIRICLE
 SEGMENT OF A CIRLCE
 SECANT OF A CIRCLE,[object Object]
3 ,[object Object],The common distance of the points of a circle from its center is called radius.
4 ,[object Object],The diameter is a line segment that connects two points on the circle and goes through the center of the circle.  It is always twice as long as the radius.
5 ,[object Object],A chord is any line segment whose endpoints are at any two points on the circle and it doesn’t pass through the centre.
6 TANGENT The Tangent is a line which touches the circumference at only one point. A tangent is always perpendicular to the radius.
7 ,[object Object],A secant is an extended chord: a straight line cutting the circle at two points.

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circles

  • 1.
  • 2. AREA OF CIRCLE
  • 4. RADIUS OF A CIRICLE
  • 6. CHORD OF CIRICLE
  • 7. TANGENT OF A CIRICLE
  • 8. SEGMENT OF A CIRLCE
  • 9.
  • 10.
  • 11.
  • 12.
  • 13. 6 TANGENT The Tangent is a line which touches the circumference at only one point. A tangent is always perpendicular to the radius.
  • 14.
  • 15.
  • 16. 9 CIRCUMFERENCE OF A CIRCLE CircumferenceThe circumference of a circle is merely the boundary of the circle or rather its perimeter. It’s defined as: C = 2 ×  π × r  where: C = Circumference, r = radius, and  π = 3.1415 ....
  • 17. 10 SECTOR OF A CIRCLE A circular sector or circle sector, is the portion of a circle enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. Its formula is: Converting the central angle into degrees gives: x/360.TT r2
  • 18. 11 AREA OF A CIRCLE The area of a circle (the region occupied by a circle) is π r2 when the circle has radius r. Here the symbol π (Greek letter pi) denotes the constant ratio of the circumference of a circle to its diameter.
  • 19.
  • 20. Circumference of Circle =  2 π  x radius    where  π =  = 3.141592...
  • 21. Area of Circle: area = π r2
  • 22. Length of a Circular Arc: (with central angle )    if the angle  is in degrees, then length =  x (π/180) x r
  • 23.
  • 24. 14 CREDITS ANANT AGARWAL X-B PRANJAL SHARMA X-B RAJ KISHORE SINGH X-B ASHISH SINGH X-B